| 24 December 1966 | | Build/construction | Contracts placed for reinforced concrete driven piling for telephone exchange (GKN Foundations Ltd, Oxford Road, Ryton on Dunsmore, near Coventry). £66,000. [announced in 'Building' 20.1.1967] |
| October 1967 | | Build/construction | Tenders accepted for erection of superstructure for new trunk telephone exchange for £1.43 million [Marples Ridgeway Ltd]. |
| 8 April 1967 | | Build/construction | Tenders accepted for construction of reinforced concrete substructure and sheet piling at trunk telephone exchange [Tersons Ltd, Winston House, 4 Dollispark, London] for £105,000. |
| June 1967 | | Build/construction | Tenders accepted for phase 2 sub-structure for new trunk telephone exchange. |